Science Fiction
Dictionary
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
 |
Bio-Mechanics And Micro-Robotic Flight
It seems perfectly natural to use insects as the basis for fictional micro-robotic flight. That's exactly what Raymond Z. Gallun did in his 1936 classic short story The Scarab, using a flying beetle to evoke the idea of a tiny robotic flying machine:
...the Scarab buzzed into the great workroom as any intruding insect might, and sought the security of a shadowed corner.
Is the key to micro air vehicles (MAVs) to be found in the bio-mechanics of insects? John Loughmiller, an electrical engineer and commercial pilot writing in Design News, thinks so.
The Scarab rubbed its hind legs together, as flies will do when at rest. Then, apparently satisfied that it was in condition, it unfolded the coleoptera-like plates over its wings. With a buzz that any uninformed person would have mistaken for that of a beetle, it started out on its journey...
(Read more about scarab beetle robotic flyer)
(Dragonfly in flight)
Note the positions of the Dragonfly’s four wings. The two front wings are in a stable position in this still frame and appear to be generating equal lift. The two back wings however do not match the position of the front wings nor do they match positions relative to one another. It appears that this Dragonfly is in the process of executing a lateral maneuver from a hover by inducing drag with the rear wings in unequal amounts. The resulting complex vortices can only be analyzed using Computational Fluid Dynamics.“An airfoil uses aerodynamic lift to carry its weight. But the dragonfly uses a lot of aerodynamic drag to carry its weight. That is weird, because with airplanes you always think about minimizing drag. You never think about using drag.”
When the Dragonfly is moving forward, the two sets of wings are flapped in phase, generating lift and directional momentum.
When hovering however, the rear wings are intentionally flapped out of phase, with both the angle of attack and relative position of the front wings, which generates drag preventing motion relative to the earth but still generating lift. By decoupling one rear wing’s movement from the other, the insect can also move side to side.
All of these maneuvers require understanding of the vortices involved, because the vortices cancel or enhance lift as they interact, so a flexible CFD toolset is required.
But if these motions can be duplicated mechanically, they could give a micro-robot the ability to move rapidly from one location to another and then hover for purposes of surveillance. All the while the micro-robotic mini-spy would be generating an extremely small visual and Radar footprint plus an equally small noise signature.
Capabilities like these are of great interest to the military and law enforcement.
Read other detailed examples at Design News.
Scroll down for more stories in the same category. (Story submitted 11/11/2009)
Follow this kind of news @Technovelgy.| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
Would
you like to contribute a story tip?
It's easy:
Get the URL of the story, and the related sf author, and add
it here.
Comment/Join discussion ( 0 )
Related News Stories - (" Engineering ")
China's Drone Mothership Can Carry 100 Drones
'So the parent drone carries a spotter that it launches...'
Drones Recharge In Mid-Air Like Jets Refuel!
'...nurse drones that would cruise around dumping large amounts of power into randomly selected pods.' - Neal Stephenson, 1995.
Heat Waver - The First Ever Combo Solar Collector And Wind Turbine
'...like a spray of tulips mounted fanwise.' - Simpson Stokes, 1937.
Tesla 'Fleet Response Agents' Bolster FSD Autonomy
'You hate the whole idea that some bored drone pusher in a remote driving centre has got your life... in his hands.' - Charles Stross, 2007.
Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.
Science Fiction
Timeline
1600-1899
1900-1939
1940's 1950's
1960's 1970's
1980's 1990's
2000's 2010's
Current News
LLM 'Cognitive Core' Now Evolving
'Their only check on the growth and development of Vulcan 3 lay in two clues: the amount of rock thrown up to the surface... and the amount of the raw materials and tools and parts which the computer requested.'
Has Elon Musk Given Up On Mars?
'There ain't no such thing as a free lunch.'
Bacteria Turns Plastic Into Pain Relief? That Gives Me An Idea.
'I guess there's nobody round this table who doesn't have a Crosswell [tapeworm] working for him in the small intestine.'
When Your Child's Best Friend Is An AI
'Figments of his mind in one sense, of course, for he had shaped them...'
China's Drone Mothership Can Carry 100 Drones
'So the parent drone carries a spotter that it launches...'
Drones Recharge In Mid-Air Like Jets Refuel!
'...nurse drones that would cruise around dumping large amounts of power into randomly selected pods.'
Australian Authors Reject AI Training Of Llama
'It's done with a flip of the third joint of the tentacle on the down beat.'
Is China Mining Helium-3 On The Moon's Farside?
'...for months Grantline bores had dug into the cliff.'
Maybe It's Too Soon To Require Autonomous Mode
'I hope all those other cars are on automatic,' he said anxiously.
Is Agentic AI The Wrong Kind Of Smartness?
'It’s smart enough to go wrong in very complicated ways, but not smart enough to help us find out what’s wrong.'
Heat Waver - The First Ever Combo Solar Collector And Wind Turbine
'...like a spray of tulips mounted fanwise.'
Tesla 'Fleet Response Agents' Bolster FSD Autonomy
'You hate the whole idea that some bored drone pusher in a remote driving centre has got your life... in his hands.'
Mori3 Autonomous Shapeshifting Robot
'My homeland is being threatened by the Replicators. Thus far all attempts to stop them have failed.'
Tesla Seeks 'Tesla Robotaxi' And 'Robobus' Trademarks Ignoring Prior Art
'A robobus had just rolled up to the curb.'
Scary Grid Safety Robots
'The ultimate horror for our paranoid culture...'
Does AI Provide A Way Forward For Talk Therapy
'And there in the next room by the sofa sat a familiar suitcase, that of his psychiatrist Dr. Smile.'
